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Effects of different membranes on threshold flux
Author(s): 
Pages: 127-131
Year: Issue:  11
Journal: Water & Wastewater Engineering

Keyword:  超滤膜阈通量膜材料污染速率;
Abstract: 超滤膜在城市净水工艺中的应用,选择合适的阈通量是其成功的关键之一.围绕这一关键点,使用4种膜材料(PVC、PVDF、PES和PS)过滤原水,比较分析不同膜材料对阈通量的影响.结果表明PVDF膜的抗污染性最高,所求不可逆阈通量大于30 L/(m2·h).PS膜由于相对较小的截留分子质量,导致污染最严重,不可逆阈通量最小.PVC和PES膜对污染比较敏感,可以测定多个阈通量.
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